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21.
Abstract
Technology analysis is a new technomanagerial discipline that provides common frameworks for analysing individual technologies and their relationships to each other. It is used here to probe the development of a particular technology, namely that of permanent magnets.
The paper traces the development of permanent magnets over the past decade and explores possible future improvements in performance parameters. The strength of magnets (i.e. energy product as expressed in kilo Joules per cubic metre) has increased from approximately 40 in the 1930s to approximately 400 at present.
Future developments will be constrained by a barrier which seems to exist at approximately 525 kilo Joules per cubic metre. However this is viewed as a barrier that can be transcended and not as an immutable limit. It therefore signifies a possible breakthrough zone.
S-curve theory leads analysts to speculate about a possible breakthrough during the five year period leading up to 1995. At that date magnetic strengths of 600+ kilo Joules per cubic metre could be aimed for.
Increased magnetic strength will improve the performance parameters of all technologies utilising magnets, unleash new magnetic based technologies and threaten many traditional areas in the fields of matter processing, transporting and storing, energy processing, and information processing and storing.
These effects will cascade through the entire technological landscape creating new markets and destroying others. The article gives an overview of these impacts on the technological landscape. 相似文献
Technology analysis is a new technomanagerial discipline that provides common frameworks for analysing individual technologies and their relationships to each other. It is used here to probe the development of a particular technology, namely that of permanent magnets.
The paper traces the development of permanent magnets over the past decade and explores possible future improvements in performance parameters. The strength of magnets (i.e. energy product as expressed in kilo Joules per cubic metre) has increased from approximately 40 in the 1930s to approximately 400 at present.
Future developments will be constrained by a barrier which seems to exist at approximately 525 kilo Joules per cubic metre. However this is viewed as a barrier that can be transcended and not as an immutable limit. It therefore signifies a possible breakthrough zone.
S-curve theory leads analysts to speculate about a possible breakthrough during the five year period leading up to 1995. At that date magnetic strengths of 600+ kilo Joules per cubic metre could be aimed for.
Increased magnetic strength will improve the performance parameters of all technologies utilising magnets, unleash new magnetic based technologies and threaten many traditional areas in the fields of matter processing, transporting and storing, energy processing, and information processing and storing.
These effects will cascade through the entire technological landscape creating new markets and destroying others. The article gives an overview of these impacts on the technological landscape. 相似文献
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Constructivist Negotiation Ethics 总被引:1,自引:0,他引:1
The success of Discourse Ethics is premised on the discovery and use of shared values. If this is true what type of negotiation style, especially when used in an intercultural setting, is best suited to make use of shared values. Research focusing on moral arguments between Germans and Americans uncovered an array of shared values. But the existence of shared values, by itself, was not an adequate predictor of a negotiation's success. What did prove to be a predictor of success was the use of a Constructivist style of negotiation by both parties. 相似文献
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Wendy van der Valk 《Industrial Marketing Management》2008,37(3):301-315
An increasing part of companies' purchasing expenditures is being spent on (business) services. At the same time, the interactive character of business services has so far largely been neglected in purchasing and supply management studies. The success of a service purchase is however established during the ongoing production and consumption of that service, which takes place in continuous interaction between buyer and seller.This paper investigates these ongoing interactive processes between buyer and seller after the purchase decision has been made. The specific focus is on services buying by manufacturers, since manufacturers' services spend increasingly encompasses services that eventually become part of the final offering to customers. This is expected to pose specific challenges for manufacturing companies, who have traditionally been involved with purchasing goods.Case studies into ongoing buyer-seller interaction are conducted at three manufacturing companies. Starting from a usage-based classification which contains four types of business services, four services are studied at each manufacturing company. The results show that indeed the different types of services can be associated with distinct patterns of ongoing interaction. Furthermore, the results provide initial support for the idea that having differentiated patterns of interaction contributes to successful ongoing service exchange. 相似文献
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Health is one of the crucial problems confronting the development of Third World countries. Community‐based primary health care is the best instrument for mobilising community development.Development through health, however, can only be achieved if primary health care is implemented in a comprehensive approach in which a supportive environment and living conditions are as important as the provision of health care services. The Venda care group organisation, like other village health workers, is involved in primary health care and community development in the communities of the care groups. Such supportive community‐based organisations are able to alleviate health and development problems at the grass roots provided that programmes and activities are based on community participation, self‐reliance and the development of local decision‐making and leadership skills. The degree of success of the Venda care group organisation in achieving these objectives was investigated. 相似文献
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Summary This paper formulates an optimizing model of a small open economy with a representative (immortal) household, a firm and a government. The asset menu consists of domestic currency, non-traded bonds and traded bonds. There is a risk premium on traded bonds, which leads to deviations from perfect capital mobility and uncovered interest parity. Taxes are lump-sum, so that finance by bonds and by taxation are equivalent. The model allows for current-account and wealth dynamics. The model assumes either purchasing power parity or imperfect substitution between home and foreign goods and either labour market equilibrium, nominal wage rigidity or real wage rigidity. The steady-state effects of a fiscal contraction, a monetary disinflation and an increase in the world interest rate are discussed. The transient effects of these policies are analysed with the aid of a multiple shooting algorithm.We thank Gerard Staarink for implementing the multiple shooting algorithm used in section 4 and we thank Professors M. Fase and J. Pen for their constructive comments on a previous version of this paper. The paper is a shortened version of discussion paper No. 168 of the Centre for Economic Policy Research, London. 相似文献
30.
Constant Market Share (CMS) analysis is a popular tool for analyzing changes in exports of a country. Nevertheless, its theoretical foundations (and policy relevance) have been questioned. In this paper, we provide such a foundation by relating CMS analysis to a two-stage homothetic demand model. An indication of the empirical relevance of this relationship is given by comparing the CMS analysis with a two-stage Constant Elasticity of Substitution demand model applied to 1972–1976 data of the Economic and Social Commission for Asia and the Pacific (ESCAP).Paper presented at the XX-th world conference of the Applied Econometric Association in Istanbul, December 1986. The research reported in this paper was carried out as part of the project Disequi-librium and Equilibrium in Demand and Supply, which is approved by the Dutch Office of Education and Sciences. Ivo J. Steyn and Philip A. ten Cate provided excellent research assistance. We thank an anonymous referee for helpful comments. 相似文献